Disk harrow



(No Model.)

G. WILKENING.

DISK HARROW.

No. 448,396. Patented Mar. 17, 1891.

ooooooooooooooooooooooooooooooooooooooooooooo c.

arn'r rricn.

GOTTLIEB WILKENING, OF DAYTON, OHIO.

DISK HRROW.

EEPEC'EFICATION forming' part of Letters Patent No. 448,396, dated March 17, 1891.

V Application filed Novemher 26, 1890. Serial No. 372,682. (No model.)

TO ctlZ whom, it may conccrn:

Beit known that I, GorrLIEB WILKENING, a Citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Disk Harrows; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which .it appertains to make and use the same, reference being` had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

My invention relates to improvements in disk-harrows, the several features of which willbe fully hereina'fterdescribedand claimed.

The mechanism is illustrated in the accompanying` drawings, in which- Figure l is a top view of the harrow with the cleaner attachment omitted' Fig. 2 is a rear view of the same with the cleaner device attached to the gang-frameon the right. Fig. 3 is a side view of the shift'ing` device. Fig'. i is a long'itudinal section of the standard, the roller-case, the shaft, and rollers being complete. Fig. 5 is a transverse section of the same, olnitting` the standards. Fig. 6 is a top view of the coupling-plate. Fig. 7is two disks set at an incline froin a right angle to the shaft.

Like letters and numerals designate like parts throughout the several views.

The main frame of the harrow is constructed in the usual form and comprises the crosspiece A, the tongue B, and iron braces to iirmly bind the parts.

The gang-frames, in which are held the disks, comprise the standards D D and the bars C, that bind said standards. To the outer end of the gang-frame is pivoted the coupling-plate l. (Shown at Fig. 6.) The same has round lateral projections 2, a vertical pin 8, and a circular slot in the end. The vertical pin passes through an orifice of the main frame, and a washer and pin make the fastening` complete. A thin plate of metal 5 is attached to the under side of the cross-piece and forms a bearing-plate for the couplingplate. A stud Lt passes through the crosspiece and bearing-plate, and the head Occupies the slot of the coupling plate. This guides and restricts the movement of the inner end of the coupling-plate. The effect of the coupling-plate is to admit of an axial movement about its pin and a rising` and lowering of the inner end of the gang-frame, thereby adaptingthe same to any unevenness of the surface of theground. Theinner ends of the gana-frames are held solely by the draft-rods 6, the farther ends being' attached to the levers 7 7 of the shifting device. The concavo-convex disks s are held by the rod u, and the sleeves t, as is usual. The sleeves that form the bearings havea peripheral projection which engages the peripheral grooves of the anti-friction rollers 12 and 13. These have bearings for their spindles in the box 11. This box is enteredl into .the standard from beneath and bears against lugs of said standard, and is held by pins or otherwise.

The shifting' device is of two symmetrical parts and may be connected by the cross-bar 8, and the two disk gangs move simultaneously or disconnected and operated at pleasure. This device comprises the lever 7 ,which is pivoted to the shaft, and having the drag'- rod 6 coupled at its lower end, and above the pivot is coupled the disengaging-bar 9,with a projection on its upper surface, and the post 10, with a notch to receive said projection. The said bar is held up by the spiral Spring` w, and thereby locks the lever in position, therebyholdingthegang-frame on a line with the main frame.

At F is shown the front end of the bar, on which is suspended the driverls seat, the same occupying the usual position over the harrow. WVhen it is desirable to throw the gangs in au obliqne position, the driver depresses the disengaging-bars with his feet and lets the inner ends swing back. At Fig. 7 two disks are shown, which have an inclination from that of the usual position-that of a right angle to that of the shaft. Its Operation is identical with those of its class as to its function, and a further description is not necessary.

To the top and rear portion of the gangfrarne is attached the device for Cleaning' the disks. This device cornprises the bar 15, at-

tached to said frame, and to which `are pivoted the several cleaner-blades 17, the lever IOO 18, pivoted to the same, and the Weighted arm 19, pivoted to said lever. Lug's on the cleaner-blades engage projections on the under edge of the slidiug bar. This bar is suspended on rollers 20 20, pivoted to the fixed bar 15. Then the Weighted arm is carried to the right,

the cleaner-blades are held against the disks,

and When the position is reversed the same are held away from said disks.

Having fully described my invention, What I claim, and desire to secure by Letters Patent, 1s

1. In a disk harrow, the combination of the main frame A, the gaug'-franie C, the coupling-plate 1 to unite said frames, the draftrod 6, hand-level' 7, locking-bar), and post 10 to engage said bar, substantially as set forth.

' 2. In a disk harrow, the combination of the standard D, hollow at the bottom, the antifriction rollers 12 and 13, provided With peripheral groovesframell to hold said rollers,

and the shaft 14, with peripheral projection to enga-ge said groove, substantially as set forth.

.3. In .a -disk harrow, the combination of the hand-level* 7, pivoted to the tongue, the footlever 9, held up by a Spring, the post lO,With a notch to engage a projection on said foot- Iever, and the draft-rod 6, attached to the inner end of the-gang-frame, substantially as set forth.

4. In a disk harrow, the combination of the bar 15, rigidly attached to' the gang-frame, the cleaner-hlades 17, pivoted to said bar, sliding bar 16, with projections to carry said blades, lever 18, and weighted arm 19, to operate said blades in cleaningrthe concave surface of the disks, substantially as set forth.

In testimony that I claim the foregoing as my own I affix my Signature in presence of two witnesses.

GOTTLIEB WILKENING. WVitnesses;

B. PICKERING, B. F. HERSHEY. 

